EP3130902A1 - System und verfahren zur uberwachung der belastung von lagern des antriebs eines wasserfahrzeugs sowie wasserfahrzeug - Google Patents

System und verfahren zur uberwachung der belastung von lagern des antriebs eines wasserfahrzeugs sowie wasserfahrzeug Download PDF

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Publication number
EP3130902A1
EP3130902A1 EP15180386.3A EP15180386A EP3130902A1 EP 3130902 A1 EP3130902 A1 EP 3130902A1 EP 15180386 A EP15180386 A EP 15180386A EP 3130902 A1 EP3130902 A1 EP 3130902A1
Authority
EP
European Patent Office
Prior art keywords
bearing
drive
acceleration sensor
accelerations
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15180386.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Artur Jungiewicz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP15180386.3A priority Critical patent/EP3130902A1/de
Priority to PCT/EP2016/064010 priority patent/WO2017025231A1/de
Priority to CN201680027934.1A priority patent/CN108027299B/zh
Priority to EP16730818.8A priority patent/EP3335024B1/de
Priority to ES16730818T priority patent/ES2741629T3/es
Priority to KR1020187006853A priority patent/KR101949110B1/ko
Publication of EP3130902A1 publication Critical patent/EP3130902A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions

Definitions

  • the invention relates to a system and a method for monitoring the load of bearings of a drive of a watercraft.
  • the invention further relates to a watercraft with such a system.
  • Propulsion systems for watercraft are subject to the highest demands with regard to the mechanical load, in particular in swell or maneuvers.
  • the condition of the drive bearings has so far only been assessed by visual inspections. However, this requires that the bearings be disassembled to access the critical components such as bearing shells.
  • the invention has for its object to ensure a reliable monitoring of the bearing load during operation of a watercraft.
  • the solution according to the invention provides that at least one acceleration sensor is installed in the interior of the vessel via which dynamic changes in the position of the drive due to rough seas or maneuvers (for example when a submarine is diving) are recorded.
  • accelerations in three translational and three rotational directions are measured in order to obtain as detailed as possible information about the accelerations in all degrees of freedom of movement.
  • data are recorded in the evaluation unit at least on the weight, and in particular also on the geometry of the drive.
  • the mass forces are calculated in particular between the rotor and the bearings.
  • the information about the geometry is relevant for the calculation of the moment of inertia of the rotor. In this way a dynamic and precise calculation of the bearing forces is guaranteed. Especially This determines the direction, height and frequency of bearing force changes during operation.
  • Both o.g. Measurements are carried out in particular continuously during operation of the vessel.
  • the measured translational accelerations and angular accelerations of the drive and the relative position of the drive axle are fed into the evaluation unit, which, as described above, performs a dynamic and precise calculation of the bearing forces or a bearing force change over time.
  • Information that is fed into the evaluation unit or that is calculated with the aid of the evaluation unit is used, for example. displayed to a user, immediately used for further data processing or stored or fed into a controller of the drive.
  • a six-axis acceleration sensor is provided for measuring the accelerations of the drive.
  • the measurement of the accelerations in all degrees of freedom is thus carried out via a single sensor, so that there is a particularly space-saving design.
  • the acceleration sensor is arranged on an immovable part of the drive, in particular on a stator.
  • An arrangement on the stator or another immovable part of the drive is advantageous for constructional reasons: the sensor is supplied with electric current and the sensor data are transmitted to the evaluation unit, therefore it is advantageous to attach the acceleration sensor to a stationary part.
  • two eddy-current sensors are provided for distance measurement per examined bearing.
  • Eddy current sensors belong to the class of contactless distance sensors.
  • the eponymous measuring principle allows the determination of the distance to conductive measuring objects.
  • the presence of non-conductive media such as oil, water or coolant does not affect the measurement result. Due to this characteristic, eddy-current sensors are particularly suitable for use in harsh industrial environments.
  • eddy current sensors are ideal for observing dynamic processes. They are characterized by robustness, high dynamics and high resolution. In addition, they can be applied over a wide temperature range.
  • the use of two eddy current sensors which are usually arranged at an angle of 90 ° to each other, is required in order to detect the distance between the drive shaft and the bearing housing multi-dimensional.
  • the evaluation unit is designed to issue a lifetime estimate of the bearings based on the data on the load of the bearings.
  • load collectives are set up, which are compared with wear data of the bearing manufacturer, in order to enable a reliable lifetime estimation of the bearings.
  • Load collective refers to the totality of all occurring vibration amplitudes over a period of time. Oscillating loads occur in reality rarely in one stage, so with only a single amplitude. As a rule, there are many different amplitudes without fixed order. By evaluating this so-called stress-time function, one obtains a description of this function in terms of the frequencies of the loads encountered. These load collectives are then used to estimate the life of the respective bearing.
  • the drive 2 is a system 4 for monitoring the load of bearings 6, with the aid of a motor housing 8 on a drive shaft 10.
  • the drive shaft 10 is formed in the embodiment shown as a rotor 11 and extends along a shaft axis A. From the figure a portion of the drive shaft 10 is shown.
  • the entire drive shaft comprises a plurality of rotors 11, which leads to a s.g. Driveline are composed.
  • the drive 2 further comprises a stator 12 arranged inside the motor housing 8.
  • the motor housing 8 is supported on a foundation 16 via installation elements 14.
  • the system 4 comprises a six-axis acceleration sensor 18 for measuring accelerations of the drive 2 in three orthogonal directions as well as three angular accelerations. In this way, information about the accelerations or forces are obtained in all degrees of freedom. In this case, only one acceleration sensor 18 is required for the entire drive train.
  • the system 4 further comprises per bearing 6 each two eddy current sensors, which are shown in the figure as a unit and provided with the reference numeral 20.
  • the eddy current sensors measure the distance between the drive shaft 10 and a bearing housing of the bearing 6 not shown in detail.
  • the reference numeral 20 thus generally denotes a distance sensor.
  • the system 4 also includes an evaluation unit 22, in which the measurement data of the acceleration sensor 18 and the eddy current sensors 20 are fed to the evaluation.
  • the evaluation unit 22 the data about the accelerations and the relative position of the rotor 11 or drive shaft 10 processed to the bearing shells of the bearing 6 to gain information about the forces acting on the bearings 6 forces in the operation of the vessel. In particular, the direction, the height and the frequency of the bearing force changes are determined. These data are compared with manufacturer data on the load capacity of the bearings 6, so that it is possible to make a statement about the life of the bearings without the need for disassembly of the bearings is required.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
EP15180386.3A 2015-08-10 2015-08-10 System und verfahren zur uberwachung der belastung von lagern des antriebs eines wasserfahrzeugs sowie wasserfahrzeug Withdrawn EP3130902A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP15180386.3A EP3130902A1 (de) 2015-08-10 2015-08-10 System und verfahren zur uberwachung der belastung von lagern des antriebs eines wasserfahrzeugs sowie wasserfahrzeug
PCT/EP2016/064010 WO2017025231A1 (de) 2015-08-10 2016-06-17 System und verfahren zur überwachung der belastung von lagern eines antriebs eines wasserfahrzeugs sowie wasserfahrzeug
CN201680027934.1A CN108027299B (zh) 2015-08-10 2016-06-17 监控船舶的驱动器的轴承的负荷的方法和系统以及船舶
EP16730818.8A EP3335024B1 (de) 2015-08-10 2016-06-17 System und verfahren zur überwachung der belastung von lagern eines antriebs eines wasserfahrzeugs sowie wasserfahrzeug
ES16730818T ES2741629T3 (es) 2015-08-10 2016-06-17 Sistema y procedimiento para el control de la carga de cojinetes de un accionamiento de una embarcación, así como embarcación
KR1020187006853A KR101949110B1 (ko) 2015-08-10 2016-06-17 수상운송수단의 구동 장치의 베어링 하중 모니터링 시스템 및 그 방법, 그리고 수상운송수단

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15180386.3A EP3130902A1 (de) 2015-08-10 2015-08-10 System und verfahren zur uberwachung der belastung von lagern des antriebs eines wasserfahrzeugs sowie wasserfahrzeug

Publications (1)

Publication Number Publication Date
EP3130902A1 true EP3130902A1 (de) 2017-02-15

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP15180386.3A Withdrawn EP3130902A1 (de) 2015-08-10 2015-08-10 System und verfahren zur uberwachung der belastung von lagern des antriebs eines wasserfahrzeugs sowie wasserfahrzeug
EP16730818.8A Not-in-force EP3335024B1 (de) 2015-08-10 2016-06-17 System und verfahren zur überwachung der belastung von lagern eines antriebs eines wasserfahrzeugs sowie wasserfahrzeug

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP16730818.8A Not-in-force EP3335024B1 (de) 2015-08-10 2016-06-17 System und verfahren zur überwachung der belastung von lagern eines antriebs eines wasserfahrzeugs sowie wasserfahrzeug

Country Status (5)

Country Link
EP (2) EP3130902A1 (ko)
KR (1) KR101949110B1 (ko)
CN (1) CN108027299B (ko)
ES (1) ES2741629T3 (ko)
WO (1) WO2017025231A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020204012A1 (de) 2020-03-27 2021-09-30 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Überwachung einer rotierenden elektrischen Maschine, rotierende elektrische Maschine sowie Fahrzeug mit einer rotierenden elektrischen Maschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3561474B1 (de) 2018-04-27 2020-12-30 Siemens Aktiengesellschaft Verfahren zur bestimmung einer belastung eines lagers, computerprogrammprodukt, steuereinrichtung und antrieb

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5224380A (en) * 1990-05-21 1993-07-06 The University Of Maryland Superconducting six-axis accelerometer
EP2446998A1 (en) * 2010-10-27 2012-05-02 JTEKT Corporation Spindle condition detection device for machine tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9963211B2 (en) * 2012-04-27 2018-05-08 Samsung Heavy Ind. Co., Ltd. Propulsion apparatus for ship and ship having the same
DE102013218504A1 (de) * 2013-09-16 2015-03-19 Robert Bosch Gmbh Verfahren und Vorrichtung zum Überwachen eines Antriebs eines Kraftfahrzeugs
CN103592125B (zh) * 2013-10-08 2016-03-16 东北大学 一种测量滚动轴承径向动柔度的方法
CN103968976B (zh) * 2014-04-30 2016-10-26 东南大学 一种车轮运动状态矢量检测系统和方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5224380A (en) * 1990-05-21 1993-07-06 The University Of Maryland Superconducting six-axis accelerometer
EP2446998A1 (en) * 2010-10-27 2012-05-02 JTEKT Corporation Spindle condition detection device for machine tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BOEHM J ET AL: "SENSORS FOR MAGNETIC BEARINGS", IEEE TRANSACTIONS ON MAGNETICS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 29, no. 6, 1 November 1993 (1993-11-01), pages 2962 - 2964, XP000432367, ISSN: 0018-9464, DOI: 10.1109/20.280903 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020204012A1 (de) 2020-03-27 2021-09-30 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Überwachung einer rotierenden elektrischen Maschine, rotierende elektrische Maschine sowie Fahrzeug mit einer rotierenden elektrischen Maschine

Also Published As

Publication number Publication date
KR101949110B1 (ko) 2019-02-15
EP3335024B1 (de) 2019-05-08
KR20180031049A (ko) 2018-03-27
WO2017025231A1 (de) 2017-02-16
ES2741629T3 (es) 2020-02-11
EP3335024A1 (de) 2018-06-20
CN108027299A (zh) 2018-05-11
CN108027299B (zh) 2019-04-30

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